#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;

/**
 * 枚举字符
 */
int main(){
    srand(time(NULL));
    char s[10];
    for(int i = 0; i < 10; i++){
        s[i] = (char)(65 + rand() % 26);
        cout << s[i];
    }
    cout << endl;

    return 0;
}